Battery charger



FIG. 1 is a top right front perspective view of a battery charger showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a bottom right rear perspective view thereof; and,

FIG. 9 is a top right front perspective view thereof showing additional unclaimed environmental structure.

The even length dashed broken lines are for environmental purposes only and form no part of the claimed design.

The uneven length dot-dash broken lines represent an unclaimed boundary line and form no part of the claimed design. 

CLAIM The ornamental design for a battery charger, as shown and described. 